颈内动脉颅内段硬化256层 CTA 表现

目的：研究颈内动脉颅内段硬化256层C T血管成像（CTA）表现。方法收集2013—2014年经256层C T A检查诊断头颈部动脉硬化402例，其中男274例，女128例，分析累及颈内动脉颅内段的发病率，分别观察动脉硬化斑块在不同性别、不同年龄组（≤60岁、＞60岁）、不同部位（左、右）特点及斑块长度、性质及血管狭窄率的差异。结果402例头颈动脉硬化累及颈内动脉颅内段164例（40．80％），男38．32％，女46．09％（χ2＝2．182，P＝0．140）。两性别＞60岁组发病率均高于≤60岁组（χ2＜31．105， P＜0．001），不同性别、年龄在部位发病率无显著差异（χ2＜0．035，P＞0．088）。斑块长度（按≤10 m m ，11～20 m m及＞20 m m分组）在男、女两性别不同年龄组间无显著性差异（χ2＜0．027，P＞0．091）。钙化斑块多见（79．81％），混合斑块次之（15．46％），脂质斑块、纤维斑块少见（1．58％，3．15％）。男性混合性斑块＞60岁年龄组较≤60岁年龄组多见（χ2＝12．204，P＝0．001），其余不同性质斑块在不同性别、不同年龄组间未见显著差异。轻度狭窄多见（54．57％），中度狭窄次之（39．75％），重度狭窄少见（5．68％），男女两性别在不同年龄组间血管狭窄率未见显著差异（χ2＜2．062，P＞0．151）。结论头颈部C T A对颈内动脉颅内段硬化诊断有重要作用。

Findings of 256-slice CT angiography in atherosclerosis of the intracranial carotid artery

Objective To study the findings of 256‐slice CT angiography in atherosclerosis of the intracranial carotid arteary . Methods 402 cases of atherosclerotic lesions in the neck and brain were collected from 2013 to 2014 in our hospital ,in which there were 274 cases of male and 128 cases female .All patients underwent 256‐slice CT angiography of the head and neck .The incidence of atherosclerosis involvement in the intracranial carotid artery was analysed .The characteristics of carotid plaque on different sexes , age(≤60 years and >60 years) and location (right and left ) were observed .The length and property of plaque ,and stenostic rate of the artery were measured respectively .Results There were 164 cases (40 .80% ) of intracranial carotid artery athrosclerosis in 402 cases of atherosclerotic lesions of the neck and brain ,in which the incident rate of male was 38 .32% and female 46 .09% (χ2 =2 .182 ,P=0 .140) .The incident rate of >60 years group was more than that of ≤60 years group (χ2 <31 .105 ,P<0 .001)for both sexes . There were no differences on lesion location (right or left)for different sexes or age groups (χ2 <0 .035 ,P>0 .088) .And there were also no differences on lesion length (≤10 mm ,11-20 mm ,>20 mm) for different sexes or age groups (χ2 <0 .027 ,P>0 .091) . Calcified plaques were seen the most (79 .81% ) ,mixed plaques were seen more (15 .46% ) ,and lipid plaques (1 .58% ) and fibrous plaques (3 .15% ) were seen less .The mixed plaques were more seen on >60 years group than that on ≤60 years group for male pa‐tients (χ2 =12 .204 ,P=0 .001) ,but no other difference was found for plaque property in other different sexes or age groups .Mild stenosis of the corated artery was found in 54 .57% lesions ,moderate stenosis in 39 .75% and severe stenosis in 5 .68% ,and there were no any difference in different sexes or age groups (χ2 <2 .062 ,P>0 .151) .Conclusion CT angiography of the head and neck is of important significance for diagnosis of atherosclerosis in the intracranial carotid artery .